A new version of the game has been released, fixing some pacing and difficulty issues with some of the levels. Full changelog can be found below:

• Level changes
  • Frosted Plateau has had a few uninteresting sections removed, as well as some minor changes to other parts of the level
  • Propulsion Pilot had a notoriously-confusing part of the level removed
  • Frigid Rise's starting platform has been raised by 1 tile
  • Finale had a minor change to its longest jump, expanding the landing platform by 2 tiles
• Dev Medal times
  • New Dev Medal times have been set on Brick Valley, Spike Town, Springy Sands, Speedy Dunes, Popsicle Peak, The Box, Frosted Plateau, Propulsion Pilot, and Finale
    
• Title Screen
  • The version is now, unsurprisingly, listed as "1.2.4"